Click on the steps of a Diffie-Hellman key exchange to see the values of the variables as they are chosen and computed. In the dashed boxes the information known to Alice and Box and the information that can be observed by the eavesdropper Eve is shown.

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Eve knows:
Alice knows	Alice and Bob agree to use p, g		Bob knows
	Alice picks secret a	Bob picks secret b
	Alice computes A=g^a mod p	Bob computes B=g^b mod p
	Alice sends A to Bob	Bob sends B to Alice
	Alice receives B from Bob	Bob receives A from Alice
	Alice computes s=B^a mod p	Bob computes s=A^b mod p
	Now Alice and Bob share the secret s